<template>
    <el-container class="homr_container">
        <!-- 头部区域 -->
        <el-header>
            <div>
                <img src="../assets/heima.png" alt="">
                <span>电商后台管理系统</span>
            </div>
            <el-button type='info' @click='logout'>退出</el-button>
        </el-header>
        <!-- 页面主题区域 -->
        <el-container>
            <!-- 侧边栏 -->
            <el-aside :width="isCollapse? '64px':'200px'">
                <!-- 控制侧边栏是否折叠 -->
                <div class="toggle" @click='toggleCollapse'>| | |</div>
                <el-menu background-color="#333744" text-color="#fff" active-text-color="#409eff" unique-opened
                    :collapse='isCollapse' :collapse-transition='false' router :default-active='activePath'>
                    <!-- 一级菜单 -->
                    <el-submenu :index="item.id+''" :key='item.id' v-for='item in menulist'>
                        <template slot="title">
                            <i :class="iconObj[item.id]"></i>
                            <span>{{item.authName}}</span>
                        </template>
                        <!-- 二级菜单 -->
                        <el-menu-item :index="'/'+value.path" :key='value.id' v-for='value in item.children' @click='saveState("/"+value.path)'>
                            <template slot="title">
                                <i class="el-icon-menu"></i>
                                <span>{{value.authName}}</span>
                            </template>
                        </el-menu-item>
                    </el-submenu>
                </el-menu>
            </el-aside>
            <!-- 右侧主体区域 -->
            <el-main>
                <!-- 路由占位符 -->
                <router-view></router-view>
            </el-main>
        </el-container>
    </el-container>
</template>

<script>
    export default {
        data() {
            return {
                // 左侧菜单数据
                menulist: [],
                // 给每个字体图标绑定给每个菜单的id
                iconObj: {
                    '125': 'iconfont icon-user',
                    '103': 'iconfont icon-tijikongjian',
                    '101': 'iconfont icon-shangpin',
                    '102': 'iconfont icon-danju',
                    '145': 'iconfont icon-baobiao'
                },
                isCollapse: false,
                activePath:''
            }
        },
        created() {
            this.getMenuList();
            this.activePath=sessionStorage.getItem('activePath')
        },
        methods: {
            // 退出
            logout() {
                // 清除token
                sessionStorage.clear();
                // 跳转到登录页
                this.$router.push('/login')
            },
            // 获取菜单列表
            async getMenuList() {
                const { data: res } = await this.$axios.get('menus')
                // console.log(res);
                if (res.meta.status !== 200) return this.$message.error(res.meta.msg);
                this.menulist = res.data;
            },
            toggleCollapse() {
                this.isCollapse = !this.isCollapse;
            },
            saveState(activePath){
                sessionStorage.setItem('activePath', activePath);
                this.activePath = activePath
            }
        }
    }
</script>

<style lang="less" scoped>
    .homr_container {
        height: 100%;
    }

    .el-header {
        background-color: #373d41;
        display: flex;
        justify-content: space-between;
        padding-left: 0;
        align-items: center;
        color: #fff;
        font-size: 20px;
    }
    .el-header div {
        display: flex;
        align-items: center;

    }
    span {
        margin-left: 15px;
    }

    .el-aside {
        background-color: #333744;

    }
    .el-aside .el-menu {
        border-right: none;
    }

    .el-main {
        background-color: #eaedf1;
    }

    .iconfont {
        margin-right: 10px;
    }

    .toggle {
        background-color: #4a5064;
        font-size: 10px;
        color: #fff;
        text-align: center;
        line-height: 24px;
        cursor: pointer;
    }
</style>